Valve regulator and governor.



' No. 702,026; Patented June l0,'l902.'

\ J. F. McELBUY.

VALVE REGULATOR AND'GOVERNOR,

nlication filed Mar. 13, 1899.)

(0 Model.)

I 1/ r1 I:

witnesses I THE "cams PEYERS cu. FNOTQLITHQ. WASHINGTON- D4 0.

UNITED STATES I PATENT OF CE.

.IAMES F. MCELROY, OF ALBANY, NEW YORK, ASSIGNOR TO CONSOLIDATED OAR-HEATING COMPANY, OF ALBANY, NEW YORK, A CORPORATION OF WEST VIRGINIA;

VALVE REGULATOR AND GOVERNOR.

SPECIFICATION forming part of Letters Patent'No. 702,026, dated-dune 10, 1902.

Application filed March 13,1899. 1IT -708,856. (No modele I ll T aZZ whom it may concern:

Be it known that 1, JAMES F. MCELROY, a citizen of the United States of America, and a resident of Albany, in the county of Albany 5 and State of New York, have invented certain new and useful-Improvements in Valve Regulators and Governors, of which the following is a specification.

My invention relates to valve regulators 1 IO and governors; and the object of my invenout the several views.

X represents the inflow and Y the outflow chamber. v

A is a valve-stem, which is preferably provided at one end with a partially-rounded headB, adapted to engage withthe lugs O on the casting D, to which the 'diaphragmE is attached. It will be noticed that the head B of the valve-stemmay be placed in its position in the casting very readily and removed therefrom withoutinterfering with other parts of the diaphragm connection; also,

that having its head slightly rounded a movement of the diaphragm to. one side or the other will not aifect the alinement of the v valve-stem, and therefore will not in any way tend to cause a binding of the valve-stem.

The diaphragm E is preferably secured in the valve-casing along the outer edges at suitable points and is secured in the casting D in any suitable manner. On thecasting D the spring S has a seat, which spring is regulated by a suitable bolt T and nut t or in any convenient way. The adjustment of the bolt T regulates the intensity of the spring ,upon the valve-casing.

' V scat-valve.

The chamber F, in which through a portion-offthe outflow-chamber Y. I have shown the valve-stem provided-with two valve-disks Grand H, adapted toengage with thevalve-seats g and h, respectively,- thusmakinga balanced valve. I do not wish tonma myself to thisconstruction, since I .may. attain the same. results with a single I preferably arrange oneof the, disks H of the valve with a projectingdisk J, which projecting disk is placed beyond the 1 seat 71. As thus arranged when the valvedisk H is forced from its seat It the fluid passing through it will impinge on the disk J, tending to open the valve still wider, and thus the flow ot' the fluid. through the opening willtend to increase thatopening. -I also arrange in connection with the valve-seat g or adjacent thereto, as illustrated in the accompanying drawings, a cell K, provided with a restricted opening L into theout-let-chamher Y, which may be made in the forni shown 7o in Figs. 2 and 3'orin any other form, the

function of'the'cellbeing to cause the flow of the fluid contained in the. Chamber X to be restricted in its passage after entering the' cell K, and thus tend to force the disk Gfarther from its seat'g, thus increasing the flow of the fluid into thechamber'Y.

Heretofore in regulating-valves when the system has been reduced in pressure, which allows the spring to force open the valve, the flow into the system is just as little whether the pressure in the outflow-chamber is reduced fifty per cent. or only five per cent.-- It is desirable to have the flow very much greater when the system has become very much reduced. In other words, the flow into the system should be proportioned to the pressure in the system, the object of a regulatingvalve being to maintainpressure or quantity of fluid in the system connected with the out-- fiowchamber at a certain predetermined amount. When, therefore, excessive drafts are made upon the system, which reduce the pressure on the diaphragm and allow the fluid to pass into the system, the resultdesired to be attained is to have the system come up as quickly as possible to the predetermined degree. It will be some time doing this under the circumstances suggested unless the valve is opened as Wide as possible under any circumstances, and the wider the valve can be opened the quicker the system will be in its proper working condition. This is provided for in my invention. Just as soon as the valve is opened at all the flow of the fluid Will tend to force it open as far as possible and allow just as'much escape of the fluid as can be had, the flow continuing, of course, until the pressure upon the diaphragm counteracts the energy of the spring and closes the valve completely.

By my construction of the valve-stem in such a manner that it can be inserted readily into the casting D and by my arrangement of the diaphragm Within the casing along its edges I can readily remove the parts for the purpose of repairing the same or replacing broken members, and at the same timeI can by this means effectively pack the diaphragm, so that there shall be no escape of the actuating fluid above the diaphragm. By my construction of the valve-stem head I can also insure the positive movement of the valvestem, and thus make a connection between the valve disk and seat which will not leak.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is-- 1. In a regulating-valve, a valve-stem, a valve-disk, a seat, with a cell adjacent to the valve-seat provided with a restricted opening leading to the outlet-chamber, so arranged that the flow of the fluid into the cell and its retention there because of the restricted discharge, will tend to force farther open the valve from the seat, and permit a greater 

